Toyota CH-R Service Manual: How To Proceed With Troubleshooting

Toyota CH-R Service Manual / Seat Belt / Seat Belt Warning System(w/ Occupant Classification System) / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the seat belt warning system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer to confirm the problem.

Click here

NEXT

3.

PRE-CHECK

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

NEXT

4.

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for CAN communication system DTCs.

Click here

Result

Proceed to

CAN DTCs are not output

A

CAN DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

5.

CHECK DTC OUTPUT (AIRBAG SYSTEM)*

(a) Clear the DTCs.

Click here

Body Electrical > SRS Airbag > Clear DTCs

(b) Check for DTCs.

Click here

Body Electrical > SRS Airbag > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO AIRBAG SYSTEM

A

6.

CHECK DTC OUTPUT (OCCUPANT CLASSIFICATION SYSTEM)*

(a) Clear the DTCs.

Click here

Body Electrical > Occupant Detection > Clear DTCs

(b) Check for DTCs.

Click here

Body Electrical > Occupant Detection > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO OCCUPANT CLASSIFICATION SYSTEM

A

7.

CHECK COMBINATION METER ASSEMBLY

(a) Check the operation of the speedometer, shift indicator and brake warning light on the combination meter assembly.

OK:

The speedometer, shift indicator and brake warning light on the combination meter assembly operate normally.

NG

GO TO METER / GAUGE SYSTEM

OK

8.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B
B

GO TO STEP 10

A

9.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here

(b) Terminals of ECU

Click here

(c) On-vehicle Inspection

Click here

NEXT

10.

REPAIR OR REPLACE
NEXT

11.

CONFIRMATION TEST
NEXT

END
    System Diagram
    SYSTEM DIAGRAM FRONT SEAT BELT WARNING Communication Table Sender Receiver Signal Communication Method Airbag sensor assembly ...

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE SEAT BELT WARNING SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that th ...

    Other materials:

    Toyota CH-R Service Manual > Can Communication System: Check Bus 2 Line for Short to GND
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and ...

    Toyota CH-R Service Manual > Toyota Entune System: System Diagram
    SYSTEM DIAGRAM HINT: Refer to following systems for details of the system diagram for Toyota Entune System. Audio and Visual System (w/o Navigation System) Click here Navigation System (w/ Navigation System) Click here Safety Connect System Click he ...

    Toyota C-HR (AX20) 2023-2026 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2026 Copyright www.tochr.net
    0.0068